diff --git a/src/main/java/umc/spring/file/controller/FileController.java b/src/main/java/umc/spring/file/controller/FileController.java
index 9eadce91f9ed2945b0b9c8905b3fb929f2445300..63b25c6e2c99d99994bc343a9da29bf242a9c82d 100644
--- a/src/main/java/umc/spring/file/controller/FileController.java
+++ b/src/main/java/umc/spring/file/controller/FileController.java
@@ -19,13 +19,13 @@ import java.util.List;
 @RequestMapping("/api/file")
 public class FileController {
 
-    private final AmazonS3Service amazon3SService;
+    private final AmazonS3Service amazonS3Service;
 
     @PostMapping("/uploads")
     public List<S3FileDto> uploadFiles(
             @RequestParam(value = "uploadFilePath") String uploadFilePath,
             @RequestPart(value = "files") List<MultipartFile> multipartFiles) {
-        return amazon3SService.uploadFiles(uploadFilePath, multipartFiles);
+        return amazonS3Service.uploadFiles(uploadFilePath, multipartFiles);
     }
 
     @DeleteMapping("/delete")
@@ -34,7 +34,7 @@ public class FileController {
             @RequestParam(value = "uuidFileName") String uuidFileName) {
         return ResponseEntity
                 .status(HttpStatus.OK)
-                .body(amazon3SService.deleteFile(uploadFilePath, uuidFileName));
+                .body(amazonS3Service.deleteFile(uploadFilePath, uuidFileName));
     }
 
     @GetMapping("/get")
@@ -42,7 +42,7 @@ public class FileController {
                         @RequestParam String uploadFilePath,
                         @RequestParam String uuidFileName) {
         try {
-            InputStream inputStream = amazon3SService.getFile(uploadFilePath, uuidFileName);
+            InputStream inputStream = amazonS3Service.getFile(uploadFilePath, uuidFileName);
             if (inputStream != null) {
                 byte[] buffer = new byte[4048];
                 int bytesRead;
diff --git a/src/main/java/umc/spring/post/service/PostServiceImpl.java b/src/main/java/umc/spring/post/service/PostServiceImpl.java
index da1195071e0b874785e5b7397d9b9c3f25938b5c..aee8834c12708aec54f9e258f3369bd220a1940e 100644
--- a/src/main/java/umc/spring/post/service/PostServiceImpl.java
+++ b/src/main/java/umc/spring/post/service/PostServiceImpl.java
@@ -6,6 +6,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Service;
 import org.springframework.web.server.ResponseStatusException;
+import umc.spring.file.domain.S3File;
+import umc.spring.file.domain.S3FileDto;
+import umc.spring.file.service.AmazonS3Service;
 import umc.spring.post.data.dto.CommentDto;
 import umc.spring.post.data.dto.PostDto;
 import umc.spring.post.data.dto.PostResDto;
@@ -29,6 +32,9 @@ public class PostServiceImpl implements PostService{
     @Autowired
     private final PostRepository postRepository;
 
+    @Autowired
+    private final AmazonS3Service amazonS3Service;
+
     @Autowired
     private final CommentRepository commentRepository;
 
@@ -37,8 +43,9 @@ public class PostServiceImpl implements PostService{
     @Autowired
     private final LikeRepository likeRepository;
 
-    public PostServiceImpl(PostRepository postRepository, CommentRepository commentRepository, UserRepository userRepository, LikeRepository likeRepository) {
+    public PostServiceImpl(PostRepository postRepository, AmazonS3Service amazonS3Service, CommentRepository commentRepository, UserRepository userRepository, LikeRepository likeRepository) {
         this.postRepository = postRepository;
+        this.amazonS3Service = amazonS3Service;
         this.commentRepository = commentRepository;
         this.userRepository = userRepository;
         this.likeRepository = likeRepository;
@@ -90,10 +97,10 @@ public class PostServiceImpl implements PostService{
             catch(Exception e){
                 throw new ResponseStatusException(HttpStatus.UNAUTHORIZED, "token not found");
             }
-            if(Objects.equals(post.getUserId(), userInfoDto.getUserId())){
-
-                postRepository.deleteById(post.getId());
-
+            if(Objects.equals(byId.get().getUserId(), userInfoDto.getUserId())){
+                S3File s3File = byId.get().getS3File();
+                amazonS3Service.deleteFile(s3File.getUploadFilePath(), s3File.getUploadFileName());
+                postRepository.deleteById(id);
                 return true;
             }
             throw new ResponseStatusException(HttpStatus.UNAUTHORIZED, "Unauthorized: You do not have permission to delete this post.");